10 Jul
2012
10 Jul
'12
12:01 p.m.
On Tuesday 10 July 2012, Anton Vorontsov wrote:
With this support kernel can save functions call chain log into a persistent ram buffer that can be decoded and dumped after reboot through pstore filesystem. It can be used to determine what function was last called before a hang or an unexpected reset (caused by, for example, a buggy driver that abuses HW).
I just looked at the patches, and they are all well implemented. I could find nothing wrong with the implementation. As to the question of whether we want this functionality I have to leave that to the tracing people.
Arnd